Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4875252 | Self-closing invisible hinge with selectively variable closing force | Donald R. Falconer | 1989-10-24 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4875252 | Self-closing invisible hinge with selectively variable closing force | Donald R. Falconer | 1989-10-24 |